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AS5130

Data Sheet - A p p l i c a t i o n I n f o r m a t i o n

8 Application Information

Benefits of AS5130

Complete system-on-chip

Flexible system solution providing absolute angle position, with serial data and PWM output

Ideal for applications in harsh environments due to magnetic sensing principle

High reliability due to non-contact sensing

Robust system, tolerant to misalignment, airgap variations, temperature variations and external magnetic fields

Application Example 1

The AS5130 requires the serial interface via SSI for the programming of the OTP register. This configuration is

recommended for applications, where the supply voltage for the AS5130 is shared among other parallel IC’s during

programming, such as a microcontroller.

Figure 22. Programming via SSI Serial Interface

Application Example II 3-wire sensor with magnetic field strength indication

In Figure 23, a simple 360º sensor with PWM output is shown. The complete application requires only three wires,

VDD, VSS and the PWM output. The circle over the center of the chip represents the diametrically polarized magnet.

Additionally, the CAO pin will deliver an analog voltage indicating a missing magnetic field. This signal could be used to

drive an external LED or to detect an alert signal.

Programming

tool

AS5130

100n

+5V

CS

DCLK

DIO

PROG

AS5130

+

7.7V